
KINGSTON TECHNOLOGY CORPORATION

MCMASTER MC33PD/MC25PS

Processor           80486SX/80486DX
Processor Speed     25/33MHz
Chip Set            None (utilizes chipset on PS/2 main board)
Max. Onboard DRAM   64MB
SRAM Cache          128KB
BIOS                None (utilizes BIOS on PS/2 main board)
Dimensions          330mm x 100mm
I/O Options         32-bit VESA local processor slot
NPU Options         None

[Image]

                              CONNECTIONS

  Purpose                                        Location

  32-bit VESA local processor slot                  S1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CPU select 80486DX                      J100           pins 1 & 2
                                                              closed

      CPU select 80486SX                      J100           pins 2 & 3
                                                              closed

     Microchannel Ready timing               J700           pins 2 & 3
      standard                                                closed

      Microchannel Ready timing               J700           pins 1 & 2
      modified                                                closed

     Local bus fast write transfer           J1101          pins 1 & 2
      mode enabled                                            closed

      Local bus fast write transfer           J1101          pins 2 & 3
      mode disabled                                           closed

                            DRAM CONFIGURATION

      Size              J801              Bank 0             Bank 1

       4MB            pins 2 & 3      (1) 1024K x 32          NONE
                       closed

       8MB            pins 2 & 3      (1) 1024K x 32     (1) 1024K x 32
                       closed

       8MB            pins 2 & 3      (1) 2048K x 32          NONE
                       closed

      12MB            pins 2 & 3      (1) 2048K x 32     (1) 1024K x 32
                       closed

      16MB            pins 2 & 3      (1) 2048K x 32     (1) 2048K x 32
                       closed

      16MB            pins 1 & 2      (1) 4096K x 32          NONE
                       closed

      20MB            pins 1 & 2      (1) 4096K x 32     (1) 1024K x 32
                       closed

      24MB            pins 1 & 2      (1) 4096K x 32     (1) 2048K x 32
                       closed

      32MB            pins 1 & 2      (1) 4096K x 32     (1) 4096K x 32
                       closed

      32MB            pins 1 & 2      (1) 8192K x 32          NONE
                       closed

      36MB            pins 1 & 2      (1) 8192K x 32     (1) 1024K x 32
                       closed

      40MB            pins 1 & 2      (1) 8192K x 32     (1) 2048K x 32
                       closed

      48MB            pins 1 & 2      (1) 8192K x 32     (1) 4096K x 32
                       closed

      64MB            pins 1 & 2      (1) 8192K x 32     (1) 8192K x 32
                       closed

  Note:Where available, 36-bit SIMMs can be substituted for 32-bit SIMMs.

